Sand sprayer



G. DASHNER Aug. 13, 1940.

SAND SPRAYER Filed Aug. '7, 1939 3 Sheets-Sheet 1 Ammv All@ 13 1940 G.DAsHNr-:R 2,211,256

SAND SPRAYER Filed Aug. '7, 1939 5 Sheets-Sheet 2 g :.FIIZT- L9 4 Aug13, 1940- G. DAsHNl-:R '2,211,256

SAND SPRAYER Filed Aug. 7, 1939 3 Sheets-Sheet 3 Qyas/Mz @21 PatentedAug. 13, 1940 UNITED STATES PATENT orties 4 Claims.

This invention relates to a sand sprayer for use in connection with anautomobile or other vehicle and it is one object of the invention toprovide an apparatus of this character which may be applied to the motorvehicle and be actuated by exhaust gases to discharge sand in front o-fthe rear wheels. It will thus be seen that when streets or roads arecovered with snow or ice, sand may be sprayed on the ground in front ofthe rear driving wheels and these wheels prevented from skidding orslipping and failing to properly propel the vehicle.

Another object of the invention is to provide an apparatus wherein thehopper holding the sand may be mounted under the rear seat or in thebaggage compartment of the vehicle and sand discharged through pipesleading from the hop-` per by gases diverted from the exhaust pipe andflowing under pressure through a pipe to a coupling connecting dischargepipes with the sand hopper.

Another object of the invention is to so form the coupling connectingthe discharge pipes with the hopper that it also serves as a valvehousing in which is mounted a valve for controlling the flow of sandfrom the hopper.

Another object of the invention is to provide actuating means for thevalve in the coupling and a valve in the pipe through which exhaustgases pass to the coupling, the actuating means serving tosimultaneously adjust both valves and thus cause proper flow of sand andexhaust gases when the sander is in operation.

Another object of the invention is to provide a sander which is ofsimple construction, consists of a comparatively few number of parts andis not liable to get out of order and need repairs.

The invention is illustrated in the accompanying drawings, wherein:

Fig. 1 is a view partly in elevation and partly in section, showing theimproved sander applied to a motor Vehicle, the view being taken on theline i-I of Fig. 2.

Fig. 2 is a view taken at right angles to Fig. l, the View being partlyin side elevation and partly in section.

Fig. 3 is a side elevation of the sander with the valves closed.

Fig. 4 is a view similar to Fig. 3, showing the valves open foroperation of the sander.

Fig. 5 is a transverse sectional view taken on the lineV 5-5 of Fig. 3,with the valve closed.

Fig. 6 is a fragmentary sectional View of the line 6-6 of Fig. 3.

Fig. 7 is a horizontal sectional view on the line 'I-l of Fig. 8.

Fig. 8 is a longitudinal sectional View on the line 8 8 of Fig. 7, withthe valve closed.

Fig. 9 is a View similar to Fig. 8, with the valve open.

The automobile or other vehicle to which the sander is applied has abody l in the rear portion of which the hopper 2 is mounted with aportion thereof projecting downwardly through the bottom of the body.The hopper may be mounted under the rear seat of an automobile, in thebaggage compartment at the rear thereof, or at any other convenientplace. Brackets 3 serve to secure the hopper firmly in place through theopening through which it extends and may be secured to the hopper andthe bottom of the body in any desired manner. This hopper is to befilled with sand which is poured into the open top thereof and renewedwhen necessary.

Under the hopper is a hollow casing l constituting a valve housing orcoupling from the opposite sides of which extend sleeves E in which theinner ends of outlet pipes t are mounted. 'I'hese pipes extendtransversely of the automobile andv have their outer end portions curvedrearwardly and terminating in nozzles 'l from which sand is to besprayed toward the `drive wheels 8 by means of which the automobile ispropelled along a road or street. The nozzles L are in front of thewheels 8 since the vehicle is usually propelled forwardly, but it is tobe understood that when the wheels are rotating in a forward directionat a high speed, the sand will be carried rearwardly of the wheels.There- 3.- fore, if an automobile is stalled and one or both rear wheelsturn without moving the automobile, sand may be discharged in front ofthe rear wheels and, if the wheels do not propel the vehicle forwardly,it may be backed and, as a portion of the sand will have been carriedback of the wheels, they will obtain sufficient traction to move thevehicle rearwardly. It will thus be seen that a stalled automobile maybe driven either forwardly or rearwardly and the surface over which thedriving wheelsmove, sanded to provide a good traction surface.

At its top, the casing t is formed with a neck 9 carrying a aring throati@ fitting snugly about the lower end portion of the hopper 2 to whichit is secured in any desired manner. The neck is inwardly thickened toform a valve seat li for engagement by a conical valve head l2 whichoperates vertically in the casing 4 and is provided with a dependingstem I3. This stem is rectangular in cross section to prevent it fromturning in the neck or sleeve I4 through which it passes and the lowerportion of the stem is provided with a side arm I5 by means of which thevalve stem is connected with means for shifting the valve verticallyinto and out of a raised or closed position.

A sleeve I6, which is flattened transversely, as shown in Fig. 5,projects forwardly from the casing 4 to receive the flared forward endportion of a pipe I'I. This pipe extends forwardly under the automobilebody with its front end connected with the exhaust pipe of the engineand when the engine is in operation, a portion of the exhaust gases willow through the pipe I'I into the casing and out through the dischargepipes 6. When the valve I2 is open and sand iiows therethrough down intothe casing, the sand will be taken up by the exhaust gases and carriedthrough the pipes 6 from which the sand is discharged as a spray throughthe nozzles 1 onto the rear wheels and the ground in front thereof. Flowof exhaust gases through the pipe I'I is controlled by a butterfly valveI8 having a stem or pivot rod I9 journaled through the pipe transverselythereof and carrying a crank 20 by means of which the valve is to beturned in the pipe toward an open or closed position.

In order to simultaneously adjust the valves I2 and i8, there has beenprovided an opening rod 2l extending longitudinally of the pipe I'Iunder the same. This rod is to be shifted longitudinally by the operatorof the automobile and will have its front .end provided with suitableactuating means in such position that it may be easily reached by aperson in the drivers seat of the vehicle. The rear end portion of therod is slidably mounted through a bracket 22 depending from the casing 4and at its rear end is formed with a downwardly extending rearwardlyinclined head or arm 23 formed with a longitudinally extending slot 2f!through which the side arm I5 of the valve stem I3 engages. Referring toFigs. 8 and 9, it will be seen that when the rod is in the positionshown in Fig. 8, the valve I2 will be closed, whereas when the rod isshifted forwardly and the side arm I5 is moved through the slot 24,downward pull will be exerted on the valve stem and the valve will beshifted downwardly to the open position shown in Fig. 9. By properlyadjusting the rod, the valve may be either partly or fully opened, andflow of sand from the hopper thus controlled. An arm 25 extends upwardlyfrom the rod 2I forwardly of the head 23 and, at its upper end, isformed vwith a vertically extending slot 26 to receive the shank 27 ofthe crank 20 carried by the pivot rod of the butterfly valve I8. Whenthe valve I2 is fully opened, the butterfly valve will also be fullyopened, but when the rod 2| is shifted rearwardly to close the valve I2,turning motion will be imparted to the crank 2D to move the butteryvalve toward closed position. Therefore, the two valves will besimultaneously adjusted and sand and exhaust gases in the properproportions delivered into the casing 4, from which the sand isdischarged by the gases through the pipes 6. It should be noted,however, that when the valve I2 is fully closed, the butterfly valvewill still be slightly open. Therefore, a certain amount of exhaustgases may still pass through the pipe I'I into the casing 4 and outthrough the pipes 6. The hot gases will serve to heat the casing 4,pipes 6, and lower portion of the hopper. This will keep the sand in thehopper dry for free flowing and also prevent accumulation of water, snowor ice in the pipes 6. Therefore, when the valve I2 is opened, sand willflow freely from the hopper into the casing 4 and the exhaust gases willcarry the sand through the pipes 6 and spray the sand from the nozzles'I onto the driving wheels and the ground in front thereof. When thevalve I2 is again closed, ow of sand into the casing will be shut off.

Having thus described the invention, what is claimed is:

l. In a sanding device, a hopper having an outlet at its bottom, acoupling supported by said hopper and surrounding the outlet thereof anddepending from the hopper, said coupling being formed with an outlet andan inlet, a discharge pipe extending from the outlet and provided with anozzle at its end, an inlet pipe communication with the inlet of thecoupling for leading exhaust gases from an engine into the coupling, theupper portion of said coupling being formed with a neck communicatingwith the hopper through the outlet thereof and being formed with a valveseat, a valve in the coupling shiftable upwardly into engagement withthe valve seat and having a depending stem protruding through the bottomof the coupling and formed with a side arm, a valve in the inlet pipehaving a stem journaled through walls of the pipe and provided with acrank at one end, an actuating rod for said valves slidablelongitudinally of the inlet pipe, an arm extending from said rod andformed with a slot receiving said crank to adjust the valve in the pipewhen thc rod is slid longitudinally, and a head extending at an inclinefrom the rod and formed with a slot receiving the side arm of the stemof the valve in the coupling for opening and closing the valve when therod is shifted longitudinally.

2. In a sanding device, a receptacle for sand having an outlet at itsbottom, a casing under said receptacle supported thereby and having anentrance for sand at its top surrounding the outlet of the receptacleand formed with a valve seat, a fluid pipe for delivering hot gasesunder pressure from the exhaust of an engine communicating with saidcasing, a valve for said pipe, discharge pipes leading from oppositesides of said casing and terminating in rearwardly extending nozzles fordischarging sand toward traction wheels of a vehicle, a boss carried bythe bottom of said casing and formed with a bore in axial alinement withthe valve seat, a valve in the casing having a conical head disposedunder the valve seat and a stem depending from the head and slidablyengaged through the bore of said boss, a rod under said iiuid pipeslidable longitudinally of the pipe and connected with the stem forshifting the valve head toward and away from the valve seat when the rodis shifted longitudinally, and means connecting said rod with the valveof the fluid pipe for opening and closing the same when the rod isshifted longitudinally.

3. In a sanding device, a receptacle for sand adapted to be mounted inthe body of a motor vehicle and having a downwardly tapered lowerportion for passing through the bottom of the body, a casing, anupwardly extending inlet neck for said casing having a flared mouthsecured about the lower portion of said receptacle to support the casingtherefrom and dispose the neck in alinement with the outlet of thereceptacle, said neck having a valve seat about its lower end, a bosscarried by the bottom of said casing and formed with a bore axiallyalined'with the valve seat, a valve having a conical head in the casingfor entering the neck and seating against the valve seat, a dependingstem for the valve head slidably passing through the bore of said bossand at its lower end provided with a side arm, a discharge pipeextending laterally from said casing and terminating in a nozzle, a pipefor delivering gases under pressure from the exhaust of an engine intosaid casing, a butterfly valve for the fluid pipe having a stemjournaled through opposite side portions of the fluid pipe and providedwith a crank at one end, a rod eX- tending longitudinally of the uidpipe under the saine, a hanger carried by said casing and slidablysupporting said rod, an arm rising from said rod and formed with a slotreceiving said crank, and a head extending downwardly at an incline fromthe rod and formed with a slot receiving the side arm of the Valve stem.

4. In combination with a motor driven vehicle including a body andtraction wheels, a sander comprising a hopper mounted in the vehiclebody and having its lower portion extending downwardly through thebottom of the body and provided with an outlet, a casing carried by anddepending from said hopper and surrounding the outlet for receiving sandtherefrom, said casing having pipes for discharging sand in front of thetraction wheels, a pipe for delivering hot gases under pressure from thedischarge manifold of the vehicle engine into the casing for carryingsand through the discharge pipes, a valve shiftable vertically in saidcasing for controlling ow of sand from the hopper into the casing havinga stem slidable through the bottom of the casing and projectingdownwardly from the casing, a valve for controlling ow of gases throughthe gas pipe having a rotatably mounted stem protruding from a side ofthe pipe and provided with a crank at one end, an actuating rod mountedfor sliding adjustment longitudinally of the pipe, an arm extending fromsaid rod and formed with a slot receiving the crank for turning thevalve of the pipe to adjusted position when the rod is shiftedlongitudinally, and an arm extending from the rear end of the rod andslidably connected with the stem of the valve in the casing for openingand closing the same in proportion to opening and closing of the pipevalve when the rod is shifted longitudinally.

GEORGE DASHNER.

